Steam-generator



(No Model.) 2 Sheets-Sheet 1; A. L. GILSTRAP. STEAM GENERATOR.

No. 399,259. Patented Mar. 12, 1889.

N. PETERS. mmuxm m mr. wahin zm o. c.

(No Mariel.) 2 Sheets-Sheet 2. A. L. GILSTRAP. STEAM GENERATOR.

Patented MaIalZ, 1889.

Javaraior.

Phole-Llmngnphen wmin w. n. a

UNiTEn rn'rns ABNER ll. GlllS'lR-AP, OF MACOIS MISSOURI.

STEAM-G EN ERATOR.

SPECIFICATION forming part of Letters Patent No. 399,259, dated March 12, 1889.

Application filed October 12, 1887. Serial No. 252,189. (No model.)

by which steam-power is cheaply produced, fuel saved, and cinders prevented from escaping. These objects I attain by means of the device illustrated in the accompanying drawiugs, forming a part of this specification, in which- Figure 1 is a vertical longitudinal section of a generator embodying my improvements. Fig. 2 is a cross-section upon the line .1 a: of Fig. 1; and Fig. 3 is also a cross-section, near the base, on the line y y of Fig. 1.

Referring by letter to the drawings, A indieates the outer walls of the generator, secured to the base-plate B by means of belts or rivets b, extending through the lower edge or rim of the outer walls, A, and base-plate B, the said walls A all around extending upupward to a point at or near a horizontal line with the top of the furnace E, the elevation of which furnace extends up to or near the water-line, and may be any height desired, and from which horizontal line the walls A are curved inward and upward to a point, (1, about vertical with the outsideot' the furnace E, (called tire-box in my patent, No. 365,000,) and from thence directly upward to any desired extent, and are provided with a suitable cap, a concave on the under side.

C a l'lowser covering extending around the walls A of the generator and secured -to the. base-plate B in a similar manner, and forming between it and the walls A a line or space, 0 around the walls A, extending upward and connecting with the smoke-stack, being identical with the smoke-stack D at the point e at or nearly on a horizontal line with the point a of the gei'icrz'ltor-walls A.

I) is a Smokestack, made of any desired size and shape.

E is a furnace placed inside and about the center oi. the walls A, and its sides P are secured to thc base-plate 1-3 by means of a rim. riveted or bolted thereto, preferably extending around the base of the furnace inside, formi n a slnuilder, e, on the base-plate around the inside of the furnace and an opening through the base-plate to receive a grate, F, the rim 7" of which rests on said shoulder at the lower on d of the furnace.

The base-plate :l is preferably square, but may he made of any desired term and thickness, with a hole through it about the center and under the .turnace E and the grate F to permit the ashes and cindcrs to drop through from the furnace into an ash-box below and to admit a draft of air. the furnace is secured a cap, 6, bolted or riveted on, concave on the under side. To the sides c on the outside are secured such number of rods or bars G as may be desired, connecting with the inside of the upper part of the walls A for the purpose of strengthcnin g the generator.

H is an annular pipe-line encircling the up per end of the furnace E midway between said "furnace and the generator-walls A, and which is connected with the upper end of the furna-ce by a suitable number of pipe-Flues, l, and by an increased number of descending pipe-tines, 1, curved at the lower end and inserted through the generatonwalls A, connected with the due near its bottom, by which System of lines the fire-flame and hot air can pass from the Furnace into the an unlar flue, preferably a larger tlue than the pipetiues I I, and from thence descend the pipeflues 1 into the flue c", and from thence ascend around the walls A into and up the smokestack. To clean out the lines and waterspaccs between them, openings are made down through the base-plate, which openings are 1 indicated by and a, each of which is sup plied with the usual. covcring-plates, K, through which the ashes, cinders, soot, sediment, and water may be driven out ot the generator.

At the top of the annular line ii, on one or more sides, as desired, are provided openings into said flue for admitting and sluiitting oflf water and steam when required to clean out To the upper end of the generator and its system of flues. These openings are supplied with the usual stopcocks, K the turning-bar of which is passed through a tube inserted through the outer covering, (1, the flue and the walls A, terminating in a handle outside of the llowser covering C. At and below the water-line in the generator two ordinary watengages, T, L, for showing the presence of water and steam, are inserted into and through the flue and walls A.

. Steam. connecting-pipes M. H are shown in Fig. 1 secured to the inside of the walls A A, and are used to conduct the steam from the dome of the generator to the engines m m and by the eseape-pi 'iesm and m' to conduct the steam from the engines into the llowser covering-f1 ue c and from thence up the smokestack D.

N is a reception-pipe having a stopcock, n, in it, inserted into and through the flue and the walls A on a level with the upper water-gage, as shown in Fig. 1, and is used for thepurpose of fillin g the generator with water. Over the base-plate and secured thereto, entering the flue c from the force-pump, and passing inside of that line half-way or more around the walls A and entering through the same, is placed the supply-pipe Q, made in the usual manner and used to supply the gener ator with water when in use.

0 is an opening into the furnace through which to place the fuel into the furnace, and

to this door is attached a shutter, 0, and a steam-gage, P, is attached to the dome of the walls A to blow olt steam when the pressure is too high.

Having thus described my invention, what l claim as new in elements and combinations is as follows:

1. In a steam-generator, the covering C, flue walls A, furnace E, annular flue H, and. connecting-fines I J, waterfeeders Q,

. braces G, plates K, and base-plate B, all arranged and constructed to operate in the manner described, and for the purposes set forth.

2. In a steam-generator, the combination of the furnace E with the annular flue H and its connecting-fines I J, the flues c and covering (3 with the walls A, substantially in the manner and for the purposes set forth.

3. 111 a steam-generator, the combination of the furnace E with the annular flue H and its connecting-fines I J, the walls A, covering C, flue c ,smoke-stacl D,the braces G, the steam connecting-pipes M, the steam-engines m, the escape-pipes 'm fl'the base-plate B, water-feeders Q, reception-pipe N, the grate F, and the plates K, substantially for the purposes and in the manner set forth and described[ ABNER L. GILSTRAP.

\Vitnesses:

W. J. MAGEE, R. MATTHEws. 

